diff --git a/Bank/BankBusinessLogic/BankBusinessLogic.csproj b/Bank/BankBusinessLogic/BankBusinessLogic.csproj
index ba96647..0112389 100644
--- a/Bank/BankBusinessLogic/BankBusinessLogic.csproj
+++ b/Bank/BankBusinessLogic/BankBusinessLogic.csproj
@@ -6,10 +6,6 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
-  <ItemGroup>
-    <Folder Include="BusinessLogic\" />
-  </ItemGroup>
-
   <ItemGroup>
     <PackageReference Include="DocumentFormat.OpenXml" Version="3.0.2" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="7.0.1" />
diff --git a/Bank/BankBusinessLogic/BusinessLogic/CardLogic.cs b/Bank/BankBusinessLogic/BusinessLogic/CardLogic.cs
new file mode 100644
index 0000000..ba1951f
--- /dev/null
+++ b/Bank/BankBusinessLogic/BusinessLogic/CardLogic.cs
@@ -0,0 +1,100 @@
+using BankContracts.BindingModels;
+using BankContracts.BusinessLogicsContracts;
+using BankContracts.SearchModels;
+using BankContracts.StoragesContracts;
+using BankContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankBusinessLogic.BusinessLogic
+{
+	public class CardLogic : ICardLogic
+	{
+		private readonly ILogger _logger;
+		private readonly ICardStorage _cardStorage;
+		public CardLogic(ILogger logger, ICardStorage cardStorage)
+		{
+			_logger = logger;
+			_cardStorage = cardStorage;
+		}
+
+		public List<CardViewModel>? ReadList(CardSearchModel? model)
+		{
+			_logger.LogInformation("ReadList. Number: {Number}, Id: {Id}", model?.Number, model?.Id);
+			var list = model == null ? _cardStorage.GetFullList() : _cardStorage.GetFilteredList(model);
+			if (list == null)
+			{
+				_logger.LogWarning("readList return null list");
+				return null;
+			}
+			_logger.LogInformation("ReadList Count: {Count}", list.Count);
+			return list;
+		}
+		public CardViewModel? ReadElement(CardSearchModel model)
+		{
+			if (model == null) throw new ArgumentNullException(nameof(model));
+			_logger.LogInformation("ReadElement Number: {Number}, Id: {Id}", model?.Number, model?.Id);
+			var element = _cardStorage.GetElement(model);
+			if (element == null)
+			{
+				_logger.LogWarning("ReadElement element not found");
+				return null;
+			}
+			_logger.LogInformation("ReadElement find Id:{ Id}", element.Id);
+			return element;
+		}
+		public bool Create(CardBindingModel model)
+		{
+			CheckModel(model);
+			if (_cardStorage.Insert(model) == null)
+			{
+				_logger.LogWarning("Insert operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool Update(CardBindingModel model)
+		{
+			CheckModel(model);
+			if (_cardStorage.Update(model) == null)
+			{
+				_logger.LogWarning("Update operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool Delete(CardBindingModel model)
+		{
+			CheckModel(model, false);
+			if (_cardStorage.Delete(model) == null)
+			{
+				_logger.LogWarning("Delete operation failed");
+				return false;
+			}
+			return true;
+		}
+
+		private void CheckModel(CardBindingModel model, bool withParams = true)
+		{
+			if (model == null)
+				throw new ArgumentNullException(nameof(model));
+			if (!withParams)
+				return;
+			if (string.IsNullOrEmpty(model.Number))
+				throw new ArgumentNullException("Нет номера карты", nameof(model.Number));
+			if (string.IsNullOrEmpty(model.Cvv))
+				throw new ArgumentNullException("Нет cvv карты", nameof(model.Cvv));
+			if (string.IsNullOrEmpty(model.Pin))
+				throw new ArgumentNullException("Нет pin карты", nameof(model.Pin));
+			_logger.LogInformation("Card. Number:{Number}." +
+				"Cvv:{ Cvv}. Pin:{ Pin}. Id: { Id} ", model.Number, model.Cvv, model.Pin, model.Id);
+			var element = _cardStorage.GetElement(new CardSearchModel { Number = model.Number });
+			if (element != null && element.Id == model.Id)
+				throw new InvalidOperationException("Карта с таким номером уже есть");
+		}
+	}
+}
diff --git a/Bank/BankBusinessLogic/BusinessLogic/ClientLogic.cs b/Bank/BankBusinessLogic/BusinessLogic/ClientLogic.cs
new file mode 100644
index 0000000..4a1d194
--- /dev/null
+++ b/Bank/BankBusinessLogic/BusinessLogic/ClientLogic.cs
@@ -0,0 +1,101 @@
+using BankContracts.BindingModels;
+using BankContracts.BusinessLogicsContracts;
+using BankContracts.SearchModels;
+using BankContracts.StoragesContracts;
+using BankContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using PdfSharp.Drawing.BarCodes;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankBusinessLogic.BusinessLogic
+{
+	public class ClientLogic : IClientLogic
+	{
+		private readonly ILogger _logger;
+		private readonly IClientStorage _clientStorage;
+		public ClientLogic(ILogger logger, IClientStorage clientStorage)
+		{
+			_logger = logger;
+			_clientStorage = clientStorage;
+		}
+
+		public List<ClientViewModel>? ReadList(ClientSearchModel? model)
+		{
+			_logger.LogInformation("ReadList. Fio:{ Fio}. Id: {Id}", model?.Fio, model?.Id);
+			var list = model == null ? _clientStorage.GetFullList() : _clientStorage.GetFilteredList(model);
+			if (list == null)
+			{
+				_logger.LogWarning("ReadList return null list");
+				return null;
+			}
+			_logger.LogInformation("ReadList Count: {Count}", list.Count);
+			return list;
+		}
+		public ClientViewModel? ReadElement(ClientSearchModel model)
+		{
+			if (model == null) throw new ArgumentNullException(nameof(model));
+			_logger.LogInformation("ReadElement. Fio: {Fio}. Id: {Id}", model?.Fio, model?.Id);
+			var element = _clientStorage.GetElement(model);
+			if (element == null)
+			{
+				_logger.LogWarning("ReadElement element not found");
+				return null;
+			}
+			_logger.LogInformation("ReadElement find. Id: {Id}", element.Id);
+			return element;
+		}
+		public bool Create(ClientBindingModel model)
+		{
+			CheckModel(model);
+			if (_clientStorage.Insert(model) == null)
+			{
+				_logger.LogWarning("insert operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool Update(ClientBindingModel model)
+		{
+			CheckModel(model);
+			if (_clientStorage.Update(model) == null)
+			{
+				_logger.LogWarning("Update operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool Delete(ClientBindingModel model)
+		{
+			CheckModel(model, false);
+			if (_clientStorage.Delete(model) == null)
+			{
+				_logger.LogWarning("Delete operation failed");
+				return false;
+			}
+			return true;
+		}
+
+		private void CheckModel(ClientBindingModel model, bool withParams = true)
+		{
+			if (model == null)
+				throw new ArgumentNullException(nameof(model));
+			if (!withParams)
+				return;
+			if (string.IsNullOrEmpty(model.Fio))
+				throw new ArgumentNullException("Нет ФИО клиента", nameof(model.Fio));
+			if (string.IsNullOrEmpty(model.Email)) 
+				throw new ArgumentNullException("Нет email клиента", nameof(model.Email));
+			if (string.IsNullOrEmpty(model.Password))
+				throw new ArgumentNullException("Нет пароля клиента", nameof(model.Password));
+			_logger.LogInformation("Client. ClientFIO:{ClientFIO}." +
+				"Email:{ Email}. Password:{ Password}. Id: { Id} ", model.Fio, model.Email, model.Password, model.Id);
+			var element = _clientStorage.GetElement(new ClientSearchModel { Email = model.Email });
+			if (element != null && element.Id == model.Id)
+				throw new InvalidOperationException("Клиент с таким логином уже есть");
+		}
+	}
+}
diff --git a/Bank/BankBusinessLogic/BusinessLogic/OperationLogic.cs b/Bank/BankBusinessLogic/BusinessLogic/OperationLogic.cs
new file mode 100644
index 0000000..22ed10e
--- /dev/null
+++ b/Bank/BankBusinessLogic/BusinessLogic/OperationLogic.cs
@@ -0,0 +1,92 @@
+using BankContracts.BindingModels;
+using BankContracts.BusinessLogicsContracts;
+using BankContracts.SearchModels;
+using BankContracts.StoragesContracts;
+using BankContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankBusinessLogic.BusinessLogic
+{
+	public  class OperationLogic : IOperationLogic
+	{
+		private readonly ILogger _logger;
+		private readonly IOperationStorage _operationStorage;
+		public OperationLogic(ILogger logger, IOperationStorage operationStorage)
+		{
+			_logger = logger;
+			_operationStorage = operationStorage;
+		}
+
+		public List<OperationViewModel>? ReadList(OperationSearchModel? model)
+		{
+			_logger.LogInformation("ReadList. Id: {Id}", model?.Id);
+			var list = model == null ? _operationStorage.GetFullList() : _operationStorage.GetFilteredList(model);
+			if (list == null)
+			{
+				_logger.LogWarning("ReadList return null list");
+				return null;
+			}
+			_logger.LogInformation("ReadList Count: {Count}", list.Count);
+			return list;
+		}
+		public OperationViewModel? ReadElement(OperationSearchModel model)
+		{
+			if (model == null) throw new ArgumentNullException(nameof(model));
+			_logger.LogInformation("ReadElement. Id: {Id}", model?.Id);
+			var element = _operationStorage.GetElement(model);
+			if (element == null)
+			{
+				_logger.LogWarning("ReadElement element not found");
+				return null;
+			}
+			_logger.LogInformation("ReadElement find. Id: {Id}", element.Id);
+			return element;
+		}
+		public bool Create(OperationBindingModel model)
+		{
+			CheckModel(model);
+			if (_operationStorage.Insert(model) == null)
+			{
+				_logger.LogWarning("insert operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool Update(OperationBindingModel model)
+		{
+			CheckModel(model);
+			if (_operationStorage.Update(model) == null)
+			{
+				_logger.LogWarning("Update operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool Delete(OperationBindingModel model)
+		{
+			CheckModel(model, false);
+			if (_operationStorage.Delete(model) == null)
+			{
+				_logger.LogWarning("Delete operation failed");
+				return false;
+			}
+			return true;
+		}
+
+		private void CheckModel(OperationBindingModel model, bool withParams = true)
+		{
+			if (model == null)
+				throw new ArgumentNullException(nameof(model));
+			if (!withParams)
+				return;
+			if (model.Sum <= 0)
+				throw new ArgumentNullException("Неверная сумма", nameof(model.Sum));
+			_logger.LogInformation("Operation. Sum:{Sum}. Id: { Id} ", model.Sum, model.Id);
+		}
+	}
+}
diff --git a/Bank/BankBusinessLogic/BusinessLogic/RequestLogic.cs b/Bank/BankBusinessLogic/BusinessLogic/RequestLogic.cs
new file mode 100644
index 0000000..04585a1
--- /dev/null
+++ b/Bank/BankBusinessLogic/BusinessLogic/RequestLogic.cs
@@ -0,0 +1,111 @@
+using BankContracts.BindingModels;
+using BankContracts.BusinessLogicsContracts;
+using BankContracts.SearchModels;
+using BankContracts.StoragesContracts;
+using BankContracts.ViewModels;
+using BankDataModels.Models;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankBusinessLogic.BusinessLogic
+{
+	public class RequestLogic : IRequestLogic
+	{
+		private readonly ILogger _logger;
+		private readonly IRequestStorage _requestStorage;
+		public RequestLogic(ILogger logger, IRequestStorage requestStorage)
+		{
+			_logger = logger;
+			_requestStorage = requestStorage;
+		}
+
+		public List<RequestViewModel>? ReadList(RequestSearchModel? model)
+		{
+			_logger.LogInformation("ReadList. Id: {Id}", model?.Id);
+			var list = model == null ? _requestStorage.GetFullList() : _requestStorage.GetFilteredList(model);
+			if (list == null)
+			{
+				_logger.LogWarning("ReadList return null list");
+				return null;
+			}
+			_logger.LogInformation("ReadList Count: {Count}", list.Count);
+			return list;
+		}
+		 public RequestViewModel? ReadElement(RequestSearchModel model)
+		{
+			if (model == null) throw new ArgumentNullException(nameof(model));
+			_logger.LogInformation("ReadElement. Id: {Id}", model?.Id);
+			var element = _requestStorage.GetElement(model);
+			if (element == null)
+			{
+				_logger.LogWarning("ReadElement element not found");
+				return null;
+			}
+			_logger.LogInformation("ReadElement find. Id: {Id}", element.Id);
+			return element;
+		}
+		public bool Create(RequestBindingModel model)
+		{
+			CheckModel(model);
+			if (model.Status != RequestStatus.Неизвестен) return false;
+			model.Status = RequestStatus.Принята;
+			if (_requestStorage.Insert(model) == null)
+			{
+				_logger.LogWarning("insert operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool Update(RequestBindingModel model)
+		{
+			CheckModel(model);
+			if (_requestStorage.Update(model) == null)
+			{
+				_logger.LogWarning("Update operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool Delete(RequestBindingModel model)
+		{
+			CheckModel(model, false);
+			if (_requestStorage.Delete(model) == null)
+			{
+				_logger.LogWarning("Delete operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool DeclineRequest(RequestBindingModel model)
+		{
+			return ChangeStatus(model, RequestStatus.Выполнена);
+		}
+		public bool SatisfyRequest(RequestBindingModel model)
+		{
+			return ChangeStatus(model, RequestStatus.Отклонена);
+		}
+
+		private void CheckModel(RequestBindingModel model, bool withParams = true)
+		{
+			if (model == null)
+				throw new ArgumentNullException(nameof(model));
+			if (!withParams)
+				return;
+			if (model.Sum <= 0)
+				throw new ArgumentNullException("Неверная сумма", nameof(model.Sum));
+			_logger.LogInformation("Request. Sum:{Sum}. Id: { Id} ", model.Sum, model.Id);
+		}
+
+		private bool ChangeStatus(RequestBindingModel model, RequestStatus status)
+		{
+			//поменять
+			model.Status = status;
+			_requestStorage.Update(model);
+			return true;
+		}
+	}
+}